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Add 12/21 and 35/27

1st number: 12/21, 2nd number: 1 8/27

12/21 + 35/27 is 353/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 27 is 189
  2. For the 1st fraction, since 21 × 9 = 189,
    12/21 = 12 × 9/21 × 9 = 108/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    35/27 = 35 × 7/27 × 7 = 245/189
  4. Add the two fractions:
    108/189 + 245/189 = 108 + 245/189 = 353/189
  5. In mixed form: 1164/189

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